Improvement in flour-bolts



T. M. WALKER.

Flour Bolt. No. 113,226. Patented Mar. 28, 1871.

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Letters Patent No. 113,226, dated March 28, 1871 IMPROVEMENT IN FLOUR-BOLTS.

The Schedule referred to in these Letters Patent and making part of the same.

I, THOMAS M. WALKER, of Bellefontaine, in the county of'Logan and State of Ohio, have invented anlmprovement in Flour-Bolts, of which the follow- .ing is a specification.

Nature and Objects of the Intention.

My invention relates to devices for knocking the libs of the bolt to jar the flour through the meshes of the cloth.

Pivoted knockers are operated through pull-rods actuated by means of eccentrics and springs applied to'their respective ends, the knockers being attached intermediately.

' The actuating eccentrics engage with an adjustable tappet, ,by which they are rocked and operate similarly with the bolt turning in either direction. They are thus freed from liability to breakage by a reversal oi the bolt.

' The strain on the actuating rods -bein g.a'longitudinal pull, they may be made of lightest metal.

The several parts and the couplings of the same Figure 3 is a horizontal sectiog of a different 'boltreel and casingfalso illustratiugmy invention. Figurefd' is a face view of oneof the 'knocker-op crating eccentrics, showing its accessories, and .illustrating the operation of the eccentric by dotted lines, indicating positions which it may-assume.

Like letters of reference indicate corresponding parts in the several figures.

General Description. The'casing A, the reel B,--.and the covering of the latter may be of any approved construction, the said reel consisting, as usual, of ya longitudinal shaft, 2, and six (more or less) parallel ribs, y, supported at equaldistance apart around the same by radial arms a:. v

v In carrying out my invention I apply to the inner surfaces of one or more of the ribs y of the reel pivoted knockers w, as in some other arrangements.

Attachedtotheseknockers w, as mediums for oper-' ating the'same, are rods '12, 'to the respective ends of which are applied springs it. and 'slotted eccentrics t.

To the'casing A, in proper position to engage with the said eccentrics t, atappet, s, is applied.

' {pivot the, knockers v, between lugs 1 on metallic striking plates 4', which may be attached to the ribs y by means of screws or bolts.

The pull-rods v I support and guide by means'of plates q, extending between the shaft z and ribs y of the reel, and attached to both by screws ,or bolts, or by means of supplementary radial wooden arms bolted to'the ribs y. 1 I

-Theknockers w and p'ullrods '27 are connected by wrists 2 on the former engaging with eyes 3 in the latter.

The springs u are applied behind screw-nuts 4 on the ends of the pull-rods c, and abut against one set of the guide-plates q.

The said nuts 4 afi'ord means for regulating their" tension.

The eccentrics tare constructed with axial leverarms 5 and transverse axial slotsii, which latter receive the hooked ends 7 of the pull-rods c, and thcreby attach the, same. They are arranged with their slots 6 as ncarly'as possible radial, and rock on the outer faces of the ad jacent guide-plates q.

The said slots 6 allow the hooked ends of the pullrods to be introduced.

The tappet s is made in the form of a crankshaft,

a wrist,- 8, forming the engaging surface.

' It is arranged parallel, or nearly so, with the adjaf.

cent end of the reel, and preferably horizontal;- oneend provided with an arm, 5), projecting through the casing.

A movable pin or screw, p, in a series of holes, 0' 0 0 supports this arm, and holds therethrough the wrist ,or'tappet proper 8 at a greater or lesser projection, and consequently varies its action.

,1 employin a reel of ordinary size three sets of knockers, andthrce knockers in each set; but this and other details are variable.

Operation.

released. The reflection of saidecccntrics, as illus- 7 trated in fig. 4, pulls the rods 1: and lifts the heads of the knockers On the release of the same the springs u, compressed by this action, forcibly return the knockersto contact with their striking plates 4', thus causing the effective jar.

If the reel, by accidental reversahrotates in the direction indicated by the arrow 1), fig. 2,, the tappet t will,'if held as shown, turn back and no other eli'ect be produced.

a corresponding increase of the elevation, and cause quently theforce of the blows of the knockers w.

The arm9 of the tappet t being held at o, the tappet is supported out of the path of the eccentric arms and the mechanism is rendered inoperative.

I claim as my invention- 1. The pull-rods v, springsu, rocking eccentrics t,

knockersw, and tappet s, combined and operating substantially as represented and described, for the as herein-described, the stationary tappet s, composed of a crank-shaft, adjustable by'arm 9, pin or-stop pp, and holes 0 o 0 substantially as represented and described, for the purpose specified. v

Witnesses: THOMAS M. WALKER.

W; H. GRIBBLE, T. 3. Emmy. 

